Best open-source alternatives to Google Sheets

CryptPad is a self-hostable collaboration suite focused on privacy and end-to-end encryption. It lets people work together on shared content in real time while keeping the stored data encrypted, so the service operators cannot read the content if the server is compromised. The project is open source and is intended for users and organizations that want collaborative editing without giving the hosting provider access to the underlying documents. The platform includes several collaborative applications such as documents, spreadsheets, presentations, forms, kanban boards, code, rich text, and whiteboards. It supports deployment for development and production, with Docker-based setup available and separate installation guidance for administrators. The README also points users to documentation, release notes, translation infrastructure, community forums, and security guidance for using instances safely.

Teable is a no-code database and collaboration platform built around a spreadsheet-like interface. It is aimed at people who want to create business applications without traditional coding, while still giving developers a structured system for managing and extending data. The project emphasizes real-time teamwork, multiple ways to view records, and support for large-scale datasets. Its README highlights features such as formulas, filtering, grouping, SQL querying, import/export, plugins, and history, suggesting that the platform is designed to handle both simple operational use and more advanced data workflows. The repository also describes a community edition for self-hosting and an enterprise edition with additional capabilities like AI, automation, authority matrix, and advanced admin features.

Grist is a relational spreadsheet project designed for users who want the familiar editing model of a spreadsheet with the structure and consistency of a database. The README describes grist-core as the server component for hosting spreadsheets, alongside related desktop and static-browser builds for local viewing and editing or read-only publishing. It is aimed at individuals and teams who need richer data organization, formulas, access control, and collaboration than traditional spreadsheets. The project emphasizes self-contained documents stored in a portable format based on SQLite, supports backups and imports/exports, and offers integrations such as a REST API, webhooks, and external automation tools. It also includes sharing, workspaces, team sites, SSO-based access control, and sandboxing options for untrusted documents.

ONLYOFFICE Docs is a self-hosted online office suite intended for teams and organizations that need collaborative document editing inside their own infrastructure or within third-party platforms. It provides editors for text documents, spreadsheets, presentations, forms, PDFs, and diagrams, with compatibility for Office Open XML formats. The project is designed to integrate with products such as ONLYOFFICE DocSpace, ONLYOFFICE Workspace, and external sync-and-share systems like Nextcloud, Moodle, ownCloud, Seafile, and Odoo. It emphasizes real-time co-editing, review and change tracking, version history, plugins, and a range of editor features such as spell-checking, accessibility options, and dark mode. The README also describes multiple editions, including a free community edition and paid enterprise/developer offerings.

Create your own database without technical experience (alternative to Airtable).

NocoDB is a no-code database platform aimed at helping users build and manage databases through a spreadsheet-like interface. It is presented as a fast and easy way to create databases online, and the README highlights both self-hosted installation and community/documentation resources. The project targets users who want to work with tables and records without writing traditional application code. It supports common database operations, multiple view types, field-level transformations, sharing options, and access control. The README also points to workflow automation integrations and programmatic access, suggesting it can act as both a user-facing admin layer and a backend for integrations.

Collabora Online Development Edition (CODE) is a powerful LibreOffice-based online office that supports all major document, spreadsheet and presentation file formats, which you can integrate in your own infrastructure.